See What's Slowing Down Your Website

Get a detailed performance report your developer can act on immediately

πŸ’° Save $500–$2,000 on a professional audit
Test from 68 global regions
Ready-to-send developer report
HAR files for debugging
Clear tips without tech jargon

Enter the website you want to check

Most shoppers browse on their phones

Choose the region where most of your customers are located

Selected: North America

Results in 90 seconds No payment requiredπŸ”’ Secure

By using this service, you agree to our Fair Use Policy

What You Get for Free

Everything you need to understand your website's speed and communicate with your developer

Check in 90 Seconds

Find out what's wrong with your site right now. No sign-up, no email required. Just enter your address β€” get results.

⭐ 89% of users find critical issues on their first test

Most Popular

Ready Report for Your Developer

Get a document you can send directly to your developer. No more explaining "the site is slow" β€” they'll see all issues with technical details and can fix them immediately.

⏱️ Save 2-3 weeks on explanations and reproducing issues

Test from Any Country

Test your site as your customers see it: from the US, Europe, or Middle East. 3 regions free, Premium offers 68 regions.

πŸ’‘ Is your site fast in Europe but slow for US customers? Find out in 90 seconds.

Report in Two Languages

You see simple recommendations in plain language. Your developer gets technical details with HAR files and waterfall. One test β€” two formats.

πŸ’Ό Show the clear report to clients, technical version to developers.

What is a HAR File and Why Does It Matter?

A HAR (HTTP Archive) file is like a complete recording of everything that happens when someone visits your website. It captures every image, script, font, and API call β€” along with exactly how long each one takes to load.

πŸ” For You

See which files are slowing down your site without any technical knowledge

πŸ‘¨β€πŸ’» For Your Developer

Exact data to reproduce and fix issues β€” no guessing needed

⏱️ Time Saved

Skip weeks of back-and-forth explaining "the site is slow"

Need More Tests? Professional Features

For those who take website speed seriously

✨ Over 300 companies have already upgraded to Premium

Test from 68 Regions

Check speed for customers in Asia, Latin America, Australia, and other regions. Each country has its own servers and network settings, just like real users.

πŸ“ˆ Case: An online store increased US sales by 23% after optimizing load times based on tests from 5 regions.

Test Logged-In Pages

Test dashboards, admin panels, and pages behind login. See how fast your site works for registered customers.

βœ… Perfect for: SaaS platforms, online banking, education portals, membership sites

Bulk Page Testing

Test multiple pages at once. Upload a list of URLs and get reports for your entire site β€” homepage, product pages, checkout, and more.

πŸ“‹ Perfect for: Site audits, migration checks, and agency client reports

Scheduled Monitoring

Set up automatic tests on a schedule β€” daily, weekly, or after each deployment. Get alerts when performance drops.

πŸ”” Never miss a slowdown: Get notified before your customers complain

Compare all plans side by side

See exactly what is included in Free and Premium before you choose.

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LightKeeper - Free Website Performance Testing from Multiple Regions